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    <title>edit_curv</title>
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    <center>Scilab Function</center>
    <div align="right">Last update : April 1993</div>
    <p>
      <b>edit_curv</b> -  interactive graphic curve editor</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>[x,y,ok,gc] = edit_curv(y)  </tt>
      </dd>
      <dd>
        <tt>[x,y,ok,gc] = edit_curv(x,y)  </tt>
      </dd>
      <dd>
        <tt>[x,y,ok,gc] = edit_curv(x,y,job)  </tt>
      </dd>
      <dd>
        <tt>[x,y,ok,gc] = edit_curv(x,y,job,tit)  </tt>
      </dd>
      <dd>
        <tt>[x,y,ok,gc] = edit_curv(x,y,job,tit,gc)  </tt>
      </dd>
    </dl>
    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>x</b>
        </tt>: vector of x coordinates</li>
      <li>
        <tt>
          <b>y</b>
        </tt>: vector of y coordinates</li>
      <li>
        <tt>
          <b>job</b>
        </tt>: a character string formed by one to three of the characters 'a','x','y'<ul>
          <li>
            <tt>
              <b>'a'</b>
            </tt>: to add points to the edited curve</li>
          <li>
            <tt>
              <b>'x' </b>
            </tt>: to modify x coordinates of the edited curve points</li>
          <li>
            <tt>
              <b>'y'  </b>
            </tt>: to modify y coordinates of the edited curve points</li>
        </ul>
      </li>
      <li>
        <tt>
          <b>tit</b>
        </tt>: a vector of three character strings which give the curve legend</li>
      <li>
        <tt>
          <b>gc</b>
        </tt>: a list of graphic window parameters: <tt>
          <b>gc=list(rect,nax)</b>
        </tt>
        <ul>
          <li>
            <tt>
              <b>rect</b>
            </tt>: bounds of the graphics (see plot2d for details)</li>
          <li>
            <tt>
              <b>nax</b>
            </tt>: graduation parameters (see plot2d for details)</li>
        </ul>
      </li>
      <li>
        <tt>
          <b>ok</b>
        </tt>: indicator if ok==%t user as returned with 'ok' menu else user as returned with 'abort' menu  : list (graphical objects created under <tt>
          <b>edit_curv</b>
        </tt>
      </li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
      <tt>
        <b>edit_curv</b>
      </tt> is an interactive graphic curve editor. To add a new point
    simply click at the desired location, the added point will be
    connected to the nearest end-point. to move a point click on it, drag
    the mouse to the new position and click to set the new position</p>
    <h3>
      <font color="blue">Author</font>
    </h3>
    <p>Serge Steer ; ; ; ; ;   </p>
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